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Note 7 - Revolving Credit Facility Financing Agreement (Detail) (USD $)
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0 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Nov. 13, 2012
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Mar. 31, 2013
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Dec. 31, 2012
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Apr. 11, 2013
Subsequent Event [Member]
Salus Agreement Amendment [Member]
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Nov. 13, 2012
Paid Monthly [Member]
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Nov. 13, 2012
Paid Upon Closing of Previous Credit Facility [Member]
Wells Fargo [Member]
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Dec. 31, 2012
Minimum [Member]
Credit Facility [Member]
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Mar. 31, 2013
Interest Expense and Fees - Combined Credit Facilities [Member]
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Dec. 31, 2012
Credit Facility - Prime Rate As Basis [Member]
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Dec. 31, 2012
Letter of Credit [Member]
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Nov. 13, 2012
Revolving Credit Facility [Member]
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| Line of Credit Facility, Term | 3 years | ||||||||||
| Line of Credit Facility, Maximum Borrowing Capacity | $ 10,000,000 | $ 5,000,000 | |||||||||
| Debt Instrument, Basis Spread on Variable Rate | 4.75% | ||||||||||
| Debt Instrument, Interest Rate, Stated Percentage | 8.00% | ||||||||||
| Line of Credit Facility, Amount Outstanding | 4,700,000 | 4,551,000 | 5,311,000 | ||||||||
| Payments of Debt Issuance Costs | 432,000 | ||||||||||
| Line of Credit Facility, Collateral Fees, Amount | 3,000 | ||||||||||
| Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.75% | ||||||||||
| Termination Fee | 75,000 | ||||||||||
| Line of Credit Facility, Current Borrowing Capacity | 5,000,000 | ||||||||||
| Line of Credit Facility, Remaining Borrowing Capacity | 400,000 | ||||||||||
| Interest Expense, Debt | 135,000 | ||||||||||
| Line of Credit Facility, Increase, Additional Borrowings | 650,000 | ||||||||||
| Line of Credit Facility, Commitment Fee Amount | $ 100,000 | ||||||||||