Condensed Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash Flows from Operating Activities:
Net loss	$ (1,258)	$ (424)
Adjustments to reconcile net loss to net cash flows from operating activities:
Depreciation	1,575	1,552
Amortization of deferred grant income	(132)	(129)
Deferred income taxes benefit	447	(238)
Share-based compensation	102	94
Increase (decrease) in cash from:
Accounts receivable	(1,025)	(2,291)
Materials and supplies	17	63
Prepaid expenses and other current assets	370	329
Accounts payable and accrued expenses	1,008	1,360
Net cash flows from operating activities	1,104	316
Cash flows from Investing Activities:
Purchase of property and equipment	(5,014)	(897)
Proceeds from note receivable	44
Net cash flows (used in) investing activities	(4,970)	(897)
Cash Flows from Financing Activities:
Borrowings under line of credit		1,000
Borrowings under long term debt	4,000
Dividends paid	(389)	(388)
Issuance of common shares for stock options exercised and employee stock purchases	69	36
Net cash flows from financing activities	3,680	648
Increase (Decrease) in Cash and Cash Equivalents	(186)	67
Cash and Cash Equivalents, Beginning of Period	1,517	157
Cash and Cash Equivalents, End of Period	1,331	224
Supplemental Disclosures:
Cash paid during year for interest	52	32
Property and equipment included in accounts payable and accrued expenses	$ 387