Consolidated Balance Sheets (USD $)	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 232,024	$ 749,766
Restricted cash	0	1,000,000
Trade accounts receivable, net of allowance for doubtful accounts of $50,000 at June 30, 2014 and $40,000 at December 31, 2013	3,876,966	3,803,853
Inventories, net	3,087,557	2,335,291
Prepaid expenses and other current assets	627,375	513,197
Assets from discontinued operations	0	1,509
Total current assets	7,823,922	8,403,616
Property, plant and equipment, net	7,672,749	7,579,556
Intangible assets, net	178,293	184,517
Other assets	119,467	185,595
Total assets	15,794,431	16,353,284
Current liabilities:
Revolving line of credit	2,296,495	0
Equipment line of credit, current portion	0	85,387
Term notes payable, current portion	479,719	335,760
Accounts payable	1,758,083	2,156,031
Accrued expenses & other current liabilities	773,870	436,775
Customer deposits	903,126	341,465
Deferred revenue, current	229,337	248,559
Performance guarantee liability	0	1,000,000
Liabilities from discontinued operations, current	320,056	319,787
Total current liabilities	6,760,686	4,923,764
Long-term liabilities:
Revolving line of credit	0	2,774,495
Equipment line of credit, non-current portion	0	538,707
Term notes payable, non-current portion	1,577,895	1,179,709
Subordinated promissory notes	431,610	417,769
Deferred revenue, non-current	121,255	172,316
Total long-term liabilities	2,130,760	5,082,996
Total liabilities	8,891,446	10,006,760
Commitments and Contingencies
Shareholders' equity:
Preferred stock, $1 par value; 2,000,000 shares authorized, none issued	0	0
Common stock, $.01 par value; 10,000,000 shares authorized; 3,926,491 issued, 2,731,839 outstanding at June 30, 2014 and 3,926,491 issued, 2,722,239 outstanding at December 31,2013	39,265	39,265
Additional paid-in-capital	11,282,665	11,236,236
Treasury stock at cost, 1,194,652 shares at June, 30, 2014 and 1,204,252 at December 31, 2013	(3,259,954)	(3,272,808)
Accumulated other comprehensive income	42,502	42,502
Accumulated deficit	(1,201,493)	(1,698,671)
Total shareholders’ equity	6,902,985	6,346,524
Total liabilities and shareholders’ equity	$ 15,794,431	$ 16,353,284