Consolidated Balance Sheets (Unaudited) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 11,160,920	$ 13,721,324
Accounts receivable, net	3,801,190	4,515,124
Costs and estimated earnings in excess of billings on uncompleted contracts	4,294,356	2,730,104
Inventories	3,036,729	2,742,905
Deferred income taxes – current	758,444	189,153
Other current assets	152,002	192,438
Total Current Assets	23,203,641	24,091,048
Property, plant and equipment, net	15,300,960	12,894,154
Construction in progress	95,516	4,051,573
Deferred income taxes – non-current	331,001	568,744
Restricted cash	800,000	800,000
Other assets	70,443	78,128
Intangible assets, net	38,830	41,614
Total Assets	39,840,391	42,525,261
Current Liabilities:
Current maturities of long-term debt	720,000	935,822
Billings in excess of costs and estimated earnings on uncompleted contracts	45,546	475,905
Accounts payable and accrued expenses	2,051,168	2,243,447
Deferred revenue	378,554	335,404
Total Current Liabilities	3,195,268	3,990,578
Long-term debt, net of current portion	4,925,508	7,387,019
Total Liabilities	8,120,776	11,377,597
Commitments and Contingencies
Stockholders’ Equity
Common stock - $0.01 par value – 10,000,000 shares authorized; issued and outstanding, 6,070,245 at June 30, 2013and 6,046,970 at December 31, 2012	60,702	60,470
Additional paid-in-capital	21,128,930	20,990,891
Retained earnings	10,529,983	10,096,303
Total Stockholders’ Equity	31,719,615	31,147,664
Total Liabilities and Stockholders’ Equity	$ 39,840,391	$ 42,525,261