Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Reconciliation of net income to cash provided (absorbed) by operating activities
Net income	$ 442,436	$ 1,011,453
Adjustments to reconcile net income to net cash provided (absorbed) by operating activities:
Depreciation and amortization	357,089	357,233
Stock option compensation expense	17,043	25,532
Gain on disposal of fixed assets	(20,154)	(4,668)
Deferred taxes	(48,000)	(33,000)
(Increase) decrease in:
Accounts receivable - billed	1,459,176	(2,558,710)
Accounts receivable - unbilled	131,200	(1,021,569)
Inventories	(636,686)	735,192
Prepaid taxes and other assets	82,013	91,620
Increase (decrease) in:
Accounts payable - trade	92,186	218,525
Accrued expenses and other	(940,350)	(298,487)
Accrued income taxes payable	0	165,159
Customer deposits	(155,433)	(7,915)
Net cash provided (absorbed) by operating activities	780,520	(1,319,635)
Cash flows from investing activities:
Purchases of property and equipment	(301,678)	(785,683)
Proceeds from sale of fixed assets	20,928	16,851
Net cash absorbed by investing activities	(280,750)	(768,832)
Cash flows from financing activities:
Proceeds from long-term borrowings	575,000	52,157
Repayments of long-term borrowings and capital leases	(200,920)	(225,450)
Proceeds from options exercised	105,118	0
Net cash provided (absorbed) by financing activities	479,198	(173,293)
Net increase (decrease) in cash and cash equivalents	978,968	(2,261,760)
Cash and cash equivalents
Beginning of period	2,573,168	2,929,868
End of period	$ 3,552,136	$ 668,108

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-Paragraph 16
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Number 123R
-Paragraph A240
-Subparagraph i
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 14
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-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 18
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 19
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt and payment of capital lease obligations.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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