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Debt Financing and Revolving Credit Facilities (Long-Term Debt) (Details)
$ in Thousands
Jun. 30, 2020
USD ($)
Debt Instrument [Line Items]  
Total debt $ 20,200
Less amounts due within one year (13,950)
Long-term debt, net of current portion 6,250
M&T Credit Agreement [Member]  
Debt Instrument [Line Items]  
Total debt 10,200
Paycheck Protection Program Loan [Member]  
Debt Instrument [Line Items]  
Total debt $ 10,000