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Notes Payable to Bank and Long-Term Debt (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 Term | Dec. 31, 2012
Notes Payable: |  |
MtronPTI revolving loan with J.P. Morgan Chase Bank, N.A. ("Chase") due June 30, 2014. The loan bears interest at the greater of Chase's prime rate or the one-month LIBOR rate plus 2.50% per annum (3.25% at December 31, 2013), which is due and payable annually. | $ 1,181,000 | $ 1,249,000
Long-Term Debt: |  |
MtronPTI term loan with Chase paid February 7, 2013. | 0 | 58,000
Less: Current maturities | 0 | 58,000
Long-Term Debt | 0 | 0
Revolving loan [Member] |  |
Long-Term Debt: |  |
Debt instrument, reference rate | one-month LIBOR rate |
Debt instrument, reference rate (in hundredths) | 2.50% |
Revolving loan, interest rate (in hundredths) | 3.25% |
Debt instrument, maturity due date | Jun. 30, 2014 | Jun. 30, 2013
Credit facilities provides under chase loan agreement [Abstract] |  |
Line of credit facility amount solely for working capital | 1,500,000 |
Available borrowing capacity | 319,000 |
Number of 12 month renewal terms | 3 |
Financial covenants under chase loan agreement [Abstract] |  |
Tangible net worth as financial covenant, minimum | 6,000,000 |
Actual tangible net worth value | 5,142,000 |
Collateral deposit | $ 1,500,000 |

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