Quarterly report pursuant to Section 13 or 15(d)


3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] Inventories are stated at the lower of cost or market value. Cost is determined using the average cost method or the FIFO method. The Company periodically evaluates the quantities on hand relative to current and historical selling prices and historical and projected sales volume. Based on these evaluations, provisions are made in each period to write down inventory to its net realizable value. Inventory write-offs are provided to cover risks arising from slow-moving items, technological obsolescence, excess inventories, and for market prices lower than cost. Inventories in continuing business segments decreased, from December 31, 2013, $174,000 in the Training and Simulation Division and $1.4 million in the Battery Division:

March 31, 2014
December 31, 2013
Raw and packaging materials
  $ 6,618,489     $ 6,761,876  
Work in progress
    912,952       666,386  
Finished products
    1,000,898       2,646,504  
  $ 8,532,339     $ 10,074,766