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Consolidated Balance Sheets (Unaudited) (USD $)
Mar. 31, 2014
Dec. 31, 2013
Current Assets:    
Cash and cash equivalents $ 11,968,531 $ 11,247,560
Accounts receivable, net 1,958,461 2,883,443
Cost and estimated earnings in excess of billings on uncompleted contracts 1,934,385 1,577,969
Inventories 4,955,490 4,497,349
Deferred income taxes – current 1,241,449 1,443,321
Other current assets 146,238 246,240
Total Current Assets 22,204,554 21,895,882
Property, plant and equipment, net 15,325,325 15,492,111
Construction in progress 230,380 128,171
Deferred income taxes – non-current 693,475 710,983
Restricted cash 600,000 800,000
Other assets 68,064 70,376
Intangible assets, net 55,493 44,116
Total Assets 39,177,291 39,141,639
Current Liabilities:    
Current maturities of long-term debt 720,000 720,000
Billings in excess of costs and estimated earnings on uncompleted contracts 397,164 252,890
Accounts payable and accrued expenses 2,629,395 2,274,442
Deferred revenue   204,527
Total Current Liabilities 3,746,559 3,451,859
Long-term debt, net of current portion 4,385,508 4,565,508
Total Liabilities 8,132,067 8,017,367
Commitments and Contingencies      
Stockholders’ Equity    
Common stock - $0.01 par value – 10,000,000 shares authorized; issued and outstanding, 6,112,107 at March 31, 2014 and 6,091,707 at December 31, 2013 61,121 60,917
Additional paid-in-capital 21,716,270 21,527,375
Retained earnings 9,267,833 9,535,980
Total Stockholders’ Equity 31,045,224 31,124,272
Total Liabilities and Stockholders’ Equity $ 39,177,291 $ 39,141,639